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Articles 541 - 570 of 1524
Full-Text Articles in Physical Sciences and Mathematics
Carbon-Encapsulated Sn@N-Doped Carbon Nanotubes As Anode Materials For Application In Sibs, Boyang Ruan, Haipeng Guo, Yuyang Hou, Qiannan Liu, Yuan-Fu Deng, Guohua Chen, Shulei Chou, Hua-Kun Liu, Jiazhao Wang
Carbon-Encapsulated Sn@N-Doped Carbon Nanotubes As Anode Materials For Application In Sibs, Boyang Ruan, Haipeng Guo, Yuyang Hou, Qiannan Liu, Yuan-Fu Deng, Guohua Chen, Shulei Chou, Hua-Kun Liu, Jiazhao Wang
Australian Institute for Innovative Materials - Papers
Carbon-encapsulated Sn@N-doped carbon tubes with submicron diameters were obtained via the simple reduction of C@SnO 2 @N-doped carbon composites that were fabricated by a hydrothermal approach. Sn nanoparticles encapsulated in carbon layers were distributed uniformly on the surfaces of the N-doped carbon nanotubes. The electrochemical performances of the composites were systematically investigated as anode materials in sodium-ion batteries (SIBs). The composite electrode could attain a good reversible capacity of 398.4 mAh g -1 when discharging at 100 mA g -1 , with capacity retention of 67.3% and very high Coulombic efficiency of 99.7% over 150 cycles. This good cycling performance, …
Same Titanium Glycolate Precursor But Different Products: Successful Synthesis Of Twinned Anatase Tio2 Nanocrystals With Excellent Solar Photocatalytic Hydrogen Evolution Capability, Gang Cheng, Yi Wei, Jinyan Xiong, Yixin Gan, Jiaxin Zhu, Feifan Xu
Same Titanium Glycolate Precursor But Different Products: Successful Synthesis Of Twinned Anatase Tio2 Nanocrystals With Excellent Solar Photocatalytic Hydrogen Evolution Capability, Gang Cheng, Yi Wei, Jinyan Xiong, Yixin Gan, Jiaxin Zhu, Feifan Xu
Australian Institute for Innovative Materials - Papers
Exploiting a synthesis protocol to tailor TiO 2 with a unique morphology and crystal phase has received considerable interest in the energy and environmental fields. We here describe the use of a titanium glycolate precursor in a hydrothermal hydrolysis reaction to engineer TiO 2 nanocrystals with different crystal phases and structures. Anatase TiO 2 nanocrystals with twinned structures were obtained by using a lower amount of NaOH in the hydrolysis system, while brookite TiO 2 nanocrystals were formed when higher amounts of NaOH were employed. The as-synthesized different TiO 2 nanocrystals have a suitable bandgap to harvest photons and a …
Anti-Site-Induced Diverse Diluted Magnetism In Limgpdsb-Type Comntisi Alloy, T T. Lin, Xuefang Dai, Ruikang Guo, Zhenxiang Cheng, L Wang, Xiaotian Wang, Guodong Liu
Anti-Site-Induced Diverse Diluted Magnetism In Limgpdsb-Type Comntisi Alloy, T T. Lin, Xuefang Dai, Ruikang Guo, Zhenxiang Cheng, L Wang, Xiaotian Wang, Guodong Liu
Australian Institute for Innovative Materials - Papers
The effect of three kinds of anti-site disorder to electronic structure and magnetic properties of the LiMgPdSb-type CoMnTiSi alloy are investigated. It was found the Mn-Ti anti-site disorder can induce the diluted magnetism in CoMnTiSi matrix. The magnetic structure has an oscillation between the ferromagnetic and antiferromagnetic states with the different degree of Mn-Ti anti-site disorder. Two novel characteristics: the diluted antiferromagnetic half-metallicity and the diluted zero-gap half-metallity are found in the different degree range of the Mn-Ti anti-site disorder. The Co-Mn and Co-Ti anti-site disorder have little effect on the magnetic properties. The width of energy gap and the …
L2(1) And Xa Ordering Competition In Hafnium-Based Full-Heusler Alloys Hf(2)Vz (Z = Al, Ga, In, Tl, Si, Ge, Sn, Pb), Xiaotian Wang, Zhenxiang Cheng, Wenhong Wang
L2(1) And Xa Ordering Competition In Hafnium-Based Full-Heusler Alloys Hf(2)Vz (Z = Al, Ga, In, Tl, Si, Ge, Sn, Pb), Xiaotian Wang, Zhenxiang Cheng, Wenhong Wang
Australian Institute for Innovative Materials - Papers
For theoretical designing of full-Heusler based spintroinc materials, people have long believed in the so-called Site Preference Rule (SPR). Very recently, according to the SPR, there are several studies on XA-type Hafnium-based Heusler alloys X2YZ, i.e., Hf2VAl, Hf2CoZ (Z = Ga, In) and Hf2CrZ (Z = Al, Ga, In). In this work, a series of Hf2-based Heusler alloys, Hf2VZ (Z = Al, Ga, In, Tl, Si, Ge, Sn, Pb), were selected as targets to study the site preferences of their atoms by first-principle calculations. It has been found that all of them are likely to exhibit the L21-type structure instead …
Short Oxygen Plasma Treatment Leading To Long-Term Hydrophilicity Of Conductive Pcl-Ppy Nanofiber Scaffolds, Sajjad Shafei, Javad Foroughi, Zhiqiang Chen, Cynthia S. Wong, Minoo Naebe
Short Oxygen Plasma Treatment Leading To Long-Term Hydrophilicity Of Conductive Pcl-Ppy Nanofiber Scaffolds, Sajjad Shafei, Javad Foroughi, Zhiqiang Chen, Cynthia S. Wong, Minoo Naebe
Australian Institute for Innovative Materials - Papers
No abstract provided.
Ultra-Light And Flexible Pencil-Trace Anode For High Performance Potassium-Ion And Lithium-Ion Batteries, Zhixin Tai, Yajie Liu, Qing Zhang, Tengfei Zhou, Zaiping Guo, Hua-Kun Liu, Shi Xue Dou
Ultra-Light And Flexible Pencil-Trace Anode For High Performance Potassium-Ion And Lithium-Ion Batteries, Zhixin Tai, Yajie Liu, Qing Zhang, Tengfei Zhou, Zaiping Guo, Hua-Kun Liu, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
Engineering design of battery configurations and new battery system development are alternative approaches to achieve high performance batteries. A novel flexible and ultra-light graphite anode is fabricated by simple friction drawing on filter paper with a commercial 8B pencil. Compared with the traditional anode using copper foil as current collector, this innovative current-collector-free design presents capacity improvement of over 200% by reducing the inert weight of the electrode. The as-prepared pencil-trace electrode exhibits excellent rate performance in potassium-ion batteries (KIBs), significantly better than in lithium-ion batteries (LIBs), with capacity retention of 66% for the KIB vs. 28% for the LIB …
Unlocking The Potential Of Amorphous Red Phosphorus Films As A Long-Term Stable Negative Electrode For Lithium Batteries, Chandrasekar Mayandi Subramaniyam, Zhixin Tai, Nasir Mahmood, Dan Zhang, Hua-Kun Liu, John Goodenough, Shi Xue Dou
Unlocking The Potential Of Amorphous Red Phosphorus Films As A Long-Term Stable Negative Electrode For Lithium Batteries, Chandrasekar Mayandi Subramaniyam, Zhixin Tai, Nasir Mahmood, Dan Zhang, Hua-Kun Liu, John Goodenough, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
Amorphous red phosphorus films (NS-RP) synthesized by a high energy sonication technique delivered a reversible capacity of 2137 mA h g-1 when used as a sole active lithium battery anode. After incorporation of reduced graphene oxide in NS-RP, the hybrid delivered a reversible capacity of 706 mA h g-1, even after 200 cycles.
Evidencing Extrinsic Stacking Faults In Twinning-Induced Plasticity Steel, Gilberto Casillas, Azdiar A. Gazder, Elena V. Pereloma, Ahmed A. Saleh
Evidencing Extrinsic Stacking Faults In Twinning-Induced Plasticity Steel, Gilberto Casillas, Azdiar A. Gazder, Elena V. Pereloma, Ahmed A. Saleh
Australian Institute for Innovative Materials - Papers
In twinning induced plasticity (TWIP) steel, the question of what leads to the onset of twinning in grains whose (100) orientations are near parallel to the tensile axis at high tensile strains has not been resolved. Using aberration corrected scanning transmission microscopy we present first-hand evidence that extrinsic stacking faults serve as nuclei for twins in (100) grains and also contribute to twin growth in a low carbon TWIP steel uniaxially tensile loaded up to its ultimate tensile strength of ~ 1080 MPa; which corresponds to a tensile true strain of 48%. The results corroborate and validate our previous Schmid …
Atomically Thin Hexagonal Boron Nitride Nanofilm For Cu Protection: The Importance Of Film Perfection, Majharu Haque Khan, Sina S. Jamali, Andrey Lyalin, Paul J. Molino, Lei Jiang, Hua-Kun Liu, Tetsuya Taketsugu, Zhenguo Huang
Atomically Thin Hexagonal Boron Nitride Nanofilm For Cu Protection: The Importance Of Film Perfection, Majharu Haque Khan, Sina S. Jamali, Andrey Lyalin, Paul J. Molino, Lei Jiang, Hua-Kun Liu, Tetsuya Taketsugu, Zhenguo Huang
Australian Institute for Innovative Materials - Papers
Coatings are routinely applied to protect metallic surfaces, and polymer coatings have been conventionally used where the thickness is not a dramatic issue.[1] For the next generation of nanoelectronics, nanoscale coatings are needed to accommo-date the compact design. 2D materials that can be fabricated into atomically thin film as a coating over the substrate can be a great choice. Graphene has recently been considered for this purpose, since it is robust and flexible, and the hexagonal hon-eycomb structure can effectively block any species, including helium.[2] Mixed results, however, have been reported.[3-7] Good short-term anti-corrosion performance was observed,[3-5] but over time, …
Effect Of Storage Environment On Hydrogen Generation By The Reaction Of Al With Water, Yin-Qiang Wang, Wei-Zhuo Gai, Xia-Yu Zhang, Hong-Yi Pan, Zhenxiang Cheng, Pingguang Xu, Zhen-Yan Deng
Effect Of Storage Environment On Hydrogen Generation By The Reaction Of Al With Water, Yin-Qiang Wang, Wei-Zhuo Gai, Xia-Yu Zhang, Hong-Yi Pan, Zhenxiang Cheng, Pingguang Xu, Zhen-Yan Deng
Australian Institute for Innovative Materials - Papers
Al powder was stored in saturated water vapor, oxygen, nitrogen and drying air separately for a time period of up to six months, the degradation behavior of Al activity was characterized by the reaction of Al with water. It was found that water vapor decreased the induction time for the beginning of Al-water reaction and reduced the total hydrogen generation per unit weight of Al, while oxygen increased the induction time and retarded the Al-water reaction. In contrast, the effect of nitrogen and drying air on Al activity was weak. The mechanism analyses indicated that water vapor promoted the hydration …
A Bladder-Free, Non-Fluidic, Conductive Mckibben Artificial Muscle Operated Electrothermally, Danial Sangian, Javad Foroughi, Syamak Farajikhah, Sina Naficy, Geoffrey M. Spinks
A Bladder-Free, Non-Fluidic, Conductive Mckibben Artificial Muscle Operated Electrothermally, Danial Sangian, Javad Foroughi, Syamak Farajikhah, Sina Naficy, Geoffrey M. Spinks
Australian Institute for Innovative Materials - Papers
Fluidic McKibben artificial muscles that operate pneumatically or hydraulically provide excellent performance, but require bulky pumps/compressors, valves and connecting lines. Use of a pressure generating material, such as thermally expanding paraffin wax, can eliminate the need for these pumps and associated infrastructure. Here we further develop this concept by introducing the first bladderless McKibben muscle wherein molten paraffin is contained by surface tension within a tailored braid. Incorporation of electrically conductive wires in the braid allows for convenient Joule heating of the paraffin. The muscle is light (0.14 g) with a diameter of 1.4mm and is capable of generating a …
Direct Regeneration Of Cathode Materials From Spent Lithium Iron Phosphate Batteries Using A Solid Phase Sintering Method, X Song, T Hu, C Liang, H L. Long, L Zhou, W Song, L You, Z S. Wu, J W. Liu
Direct Regeneration Of Cathode Materials From Spent Lithium Iron Phosphate Batteries Using A Solid Phase Sintering Method, X Song, T Hu, C Liang, H L. Long, L Zhou, W Song, L You, Z S. Wu, J W. Liu
Australian Institute for Innovative Materials - Papers
A direct regeneration of cathode materials from spent LiFePO4 batteries using a solid phase sintering method has been proposed in this article. The spent battery is firstly dismantled to separate the cathode and anode plate, and then the cathode plate is soaked in DMAC organic solvent to separate the cathode materials and Al foil at optimal conditions of 30 min at 30 °C and solid liquid ratio of 1[thin space (1/6-em)]:[thin space (1/6-em)]20 g ml−1. XRD and SEM results of the spent LiFePO4 after separation show that there are some impurity phase components and irregular morphologies with many agglomerations. The …
Strategies For Designing Metal Oxide Nanostructures, Ziqi Sun, Ting Liao, Liangzhi Kou
Strategies For Designing Metal Oxide Nanostructures, Ziqi Sun, Ting Liao, Liangzhi Kou
Australian Institute for Innovative Materials - Papers
There has been exponential growth in research activities on nanomaterials and nanotechnology for applications in emerging technologies and sustainable energy in the past decade. The properties of nanomaterials have been found to vary in terms of their shapes, sizes, and number of nanoscale dimensions, which have also further boosted the performance of nanomaterial-based electronic, catalytic, and sustainable energy conversion and storage devices. This reveals the importance and, indeed, the linchpin role of nanomaterial synthesis for current nanotechnology and high-performance functional devices. In this review, we provide an overview of the synthesis strategies for designing metal oxide nanomaterials in zero-dimensional (0D), …
Electrical Stimulation Using Conductive Polymer Polypyrrole Counters Reduced Neurite Outgrowth Of Primary Prefrontal Cortical Neurons From Nrg1-Ko And Disc1-Li Mice, Qingsheng Zhang, Dorna Esrafilzadeh, Jeremy Micah Crook, Robert M. I Kapsa, Elise M. Stewart, Eva Tomaskovic-Crook, Gordon G. Wallace, Xu-Feng Huang
Electrical Stimulation Using Conductive Polymer Polypyrrole Counters Reduced Neurite Outgrowth Of Primary Prefrontal Cortical Neurons From Nrg1-Ko And Disc1-Li Mice, Qingsheng Zhang, Dorna Esrafilzadeh, Jeremy Micah Crook, Robert M. I Kapsa, Elise M. Stewart, Eva Tomaskovic-Crook, Gordon G. Wallace, Xu-Feng Huang
Australian Institute for Innovative Materials - Papers
Deficits in neurite outgrowth, possibly involving dysregulation of risk genes neuregulin-1 (NRG1) and disrupted in schizophrenia 1 (DISC1) have been implicated in psychiatric disorders including schizophrenia. Electrical stimulation using conductive polymers has been shown to stimulate neurite outgrowth of differentiating human neural stem cells. This study investigated the use of the electroactive conductive polymer polypyrrole (Ppy) to counter impaired neurite outgrowth of primary pre-frontal cortical (PFC) neurons from NRG1-knock out (NRG1-KO) and DISC1-locus impairment (DISC1-LI) mice. Whereas NRG1-KO and DISC1-LI exhibited reduced neurite length and number of neurite branches compared to wild-type controls, this was not apparent for cultures on …
First-Order Magneto-Structural Transition And Magnetocaloric Effect In Mn(Co0.96fe0.04)Ge, Qing Yon Ren, Wayne D. Hutchison, Jian Li Wang, Andrew J. Studer, Stewart J. Campbell
First-Order Magneto-Structural Transition And Magnetocaloric Effect In Mn(Co0.96fe0.04)Ge, Qing Yon Ren, Wayne D. Hutchison, Jian Li Wang, Andrew J. Studer, Stewart J. Campbell
Australian Institute for Innovative Materials - Papers
The magnetic properties and magnetic structure of an as-prepared Mn(Co0.96Fe0.04)Ge sample has been investigated by powder neutron diffraction as well as X-ray diffraction and magnetisation measurements. The sample has a ferromagnetic structure in the low-temperature orthorhombic phase and a magneto-structural transition at 299 (1) K to the high-temperature paramagnetic hexagonal phase. This transition occurs at a higher temperature than for as-prepared (Mn0.96Fe0.04)CoGe (TM = 239 (1) K). Increased occupancy by Fe of the Co (4c) site rather than the Mn (4c) site results in this smaller suppression of the structural transition temperature away from that of undoped MnCoGe. It was …
Multiangular Rod-Shaped Na0.44mno2 As Cathode Materials With High Rate And Long Life For Sodium-Ion Batteries, Qiannan Liu, Zhe Hu, Mingzhe Chen, Qinfen Gu, Yuhai Dou, Ziqi Sun, Shulei Chou, Shi Xue Dou
Multiangular Rod-Shaped Na0.44mno2 As Cathode Materials With High Rate And Long Life For Sodium-Ion Batteries, Qiannan Liu, Zhe Hu, Mingzhe Chen, Qinfen Gu, Yuhai Dou, Ziqi Sun, Shulei Chou, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
The tunnel-structured Na0.44MnO2 is considered as a promising cathode material for sodium-ion batteries because of its unique three-dimensional crystal structure. Multiangular rod-shaped Na0.44MnO2 have been first synthesized via a reverse microemulsion method and investigated as high-rate and long-life cathode materials for Na-ion batteries. The microstructure and composition of prepared Na0.44MnO2 is highly related to the sintering temperature. This structure with suitable size increases the contact area between the material and the electrolyte and guarantees fast sodium-ion diffusion. The rods prepared at 850 °C maintain specific capacity of 72.8 mA h g−1 and capacity retention of 99.6% after 2000 cycles at …
Solid Cryogen: A Cooling System For Future Mgb2 Mri Magnet, Dipakkumar Patel, Md Shahriar Hossain, Wenbin Qiu, Hyunseock Jie, Yusuke Yamauchi, Minoru Maeda, Michael Tomsic, Seyong Choi, Jung Ho Kim
Solid Cryogen: A Cooling System For Future Mgb2 Mri Magnet, Dipakkumar Patel, Md Shahriar Hossain, Wenbin Qiu, Hyunseock Jie, Yusuke Yamauchi, Minoru Maeda, Michael Tomsic, Seyong Choi, Jung Ho Kim
Australian Institute for Innovative Materials - Papers
An efficient cooling system and the superconducting magnet are essential components of magnetic resonance imaging (MRI) technology. Herein, we report a solid nitrogen (SN2) cooling system as a valuable cryogenic feature, which is targeted for easy usability and stable operation under unreliable power source conditions, in conjunction with a magnesium diboride (MgB 2) superconducting magnet. The rationally designed MgB 2/SN2 cooling system was first considered by conducting a finite element analysis simulation, and then a demonstrator coil was empirically tested under the same conditions. In the SN2 cooling system design, a wide temperature distribution on the SN2 chamber was observed …
Electrically Stimulated Adipose Stem Cells On Polypyrrole-Coated Scaffolds For Smooth Muscle Tissue Engineering, Miina M. Bjorninen, Kerry J. Gilmore, Jani M. Pelto, Riitta Seppanen-Kaijansinkko, Minna Kellomaki, Susanna S. Miettinen, Gordon G. Wallace, Dirk Grijpma, Suvi P. Haimi
Electrically Stimulated Adipose Stem Cells On Polypyrrole-Coated Scaffolds For Smooth Muscle Tissue Engineering, Miina M. Bjorninen, Kerry J. Gilmore, Jani M. Pelto, Riitta Seppanen-Kaijansinkko, Minna Kellomaki, Susanna S. Miettinen, Gordon G. Wallace, Dirk Grijpma, Suvi P. Haimi
Australian Institute for Innovative Materials - Papers
We investigated the use of polypyrrole (PPy)-coated polymer scaffolds and electrical stimulation (ES) to differentiate adipose stem cells (ASCs) towards smooth muscle cells (SMCs). Since tissue engineering lacks robust and reusable 3D ES devices we developed a device that can deliver ES in a reliable, repeatable, and cost-efficient way in a 3D environment. Long pulse (1 ms) or short pulse (0.25 ms) biphasic electric current at a frequency of 10 Hz was applied to ASCs to study the effects of ES on ASC viability and differentiation towards SMCs on the PPy-coated scaffolds. PPy-coated scaffolds promoted proliferation and induced stronger calponin, …
Ce0.8sm0.2o1.9 Decorated With Electron-Blocking Acceptor-Doped Baceo3 As Electrolyte For Low-Temperature Solid Oxide Fuel Cells, Zheng Gong, Wenping Sun, Jiafeng Cao, Duo Shan, Yusen Wu, Wei Liu
Ce0.8sm0.2o1.9 Decorated With Electron-Blocking Acceptor-Doped Baceo3 As Electrolyte For Low-Temperature Solid Oxide Fuel Cells, Zheng Gong, Wenping Sun, Jiafeng Cao, Duo Shan, Yusen Wu, Wei Liu
Australian Institute for Innovative Materials - Papers
A series of composites with nominal compositions of BaCe0.8Sm0.2O3-δ (BCS)-Ce0.8Sm0.2 O1.9 (SDC) (20:80, 35:65, 50:50, 65:35 wt.%) are synthesized by a modified citric acid-nitrate sol-gel combustion method and evaluated as the electrolytes for low-temperature solid oxide fuel cells (SOFCs). The TEM results show that doped BaCeO3 decorated SDC particles are formed after calcining at 1000 °C for 3 h. X-ray diffraction results reveal that the composites are only composed of BaCeO3-based and SDC phases without any other impurity phases. Besides, BaCeO3-based phase is uniformly distributed in the sintered electrolytes according to EDS element mapping. The open cell voltages (OCVs) of …
Improved Reversibility Of Fe3+/Fe4+ Redox Couple In Sodium Super Ion Conductor Type Na3fe2(Po4)3 For Sodium-Ion Batteries, Ranjusha Rajagopalan, Bo Chen, Zhicheng Zhang, Xing Long Wu, Yonghua Du, Ying Huang, Bing Li, Yun Zong, Jie Wang, Gwang-Hyeon Nam, Melinda Sindoro, Shi Xue Dou, Hua-Kun Liu, Hua Zhang
Improved Reversibility Of Fe3+/Fe4+ Redox Couple In Sodium Super Ion Conductor Type Na3fe2(Po4)3 For Sodium-Ion Batteries, Ranjusha Rajagopalan, Bo Chen, Zhicheng Zhang, Xing Long Wu, Yonghua Du, Ying Huang, Bing Li, Yun Zong, Jie Wang, Gwang-Hyeon Nam, Melinda Sindoro, Shi Xue Dou, Hua-Kun Liu, Hua Zhang
Australian Institute for Innovative Materials - Papers
The methodology employed here utilizes the sodium super ion conductor type sodium iron phosphate wrapped with conducting carbon network to generate a stable Fe3+/Fe4+ redox couple, thereby exhibiting higher operating voltage and energy density of sodium-ion batteries. This new class of sodium iron phosphate wrapped by carbon also displays a cycling stability with >96% capacity retention after 200 cycles.
Multiple Stimuli-Responsive Fluorescence Behavior Of Novel Polyamic Acid Bearing Oligoaniline, Triphenylamine, And Fluorene Groups, Ying Yan, Ningwei Sun, Fangfei Li, Xiaoteng Jia, Ce Wang, Danming Chao
Multiple Stimuli-Responsive Fluorescence Behavior Of Novel Polyamic Acid Bearing Oligoaniline, Triphenylamine, And Fluorene Groups, Ying Yan, Ningwei Sun, Fangfei Li, Xiaoteng Jia, Ce Wang, Danming Chao
Australian Institute for Innovative Materials - Papers
Multiple stimuli-responsive fluorescent materials have gained increasing attention for their fundamental investigation and intelligent applications. In this work, we report design and synthesis of a novel polyamic acid bearing oligoaniline, triphenylamine, and fluorene groups, which served as sensitive units and fluorescence emission unit, respectively. The resulting polymer exhibits multiple stimuli-responsive fluorescence switching behavior triggered by redox species, pH, electrochemical, and pressure stimuli. Every fluorescence switching mechanism upon each stimulus was studied in detail. The interactions and energy transfer between sensitive units and emission unit are largely responsible for this fascinating fluorescent switching behavior. This work provides a deep understanding of …
Cooperative Electron-Phonon Coupling And Buckled Structure In Germanene On Au(111), Jincheng Zhuang, Nan Guo, Zhi Li, Xun Xu, Jiaou Wang, Jijun Zhao, Shi Xue Dou, Yi Du
Cooperative Electron-Phonon Coupling And Buckled Structure In Germanene On Au(111), Jincheng Zhuang, Nan Guo, Zhi Li, Xun Xu, Jiaou Wang, Jijun Zhao, Shi Xue Dou, Yi Du
Australian Institute for Innovative Materials - Papers
Germanene, a single-atom-thick germanium nanosheet in a honeycomb lattice, was proposed to be a Dirac fermion material beyond graphene. We performed scanning tunneling microscopy and in situ Raman spectroscopy studies combined with first-principles calculations on the atomic structures and the electronic and phonon properties of germanene on Au(111). The low-buckled 1 x 1 germanene honeycomb lattice was determined to exist in an unexpected rectangular √7 x √7 superstructure. Through in situ Raman measurements, distinctive vibrational phonon modes were discovered in √7 x √7 germanene, revealing the special coupling between the Dirac fermion and lattice vibrations, namely, electron-phonon coupling (EPC). The …
Enhanced Capacity And Cycle Life Of Nitrogen-Doped Activated Charcoal Anode For The Lithium Ion Battery: A Solvent-Free Approach, Chandrasekar Mayandi Subramaniyam, N Srinivasan, Zhixin Tai, Hua-Kun Liu, Shi Xue Dou
Enhanced Capacity And Cycle Life Of Nitrogen-Doped Activated Charcoal Anode For The Lithium Ion Battery: A Solvent-Free Approach, Chandrasekar Mayandi Subramaniyam, N Srinivasan, Zhixin Tai, Hua-Kun Liu, Shi Xue Dou
Australian Institute for Innovative Materials - Papers
Herein, we investigated the electrochemical performance of nitrogen-doped commercial activated charcoal (R-AC) for lithium-ion batteries (LIBs). With this aim, nitrogen was doped into R-AC via a solvent-free approach, which involved annealing R-AC under N2 and NH3 atmospheres at 800 °C, and the product was tested as an anode for LIBs. The sample annealed under an NH3 atmosphere (NH-AC) had a nitrogen doping level of 4.7 at% with a specific surface area of 894.5 m2 g−1 and a reduced O/C ratio of 0.31 in comparison to the sample annealed under an N2 atmosphere (N-AC) and R-AC. Raman spectroscopy detected disorder/defects owing …
Incorporation Of Human-Platelet-Derived Growth Factor-Bb Encapsulated Poly(Lactic-Co-Glycolic Acid) Microspheres Into 3d Coragraf Enhances Osteogenic Differentiation Of Mesenchymal Stromal Cells, Saktiswaren Mohan, Hanumantharao Raghavendran, Puvanan Karunanithi, Malliga Murali, Sangeetha Naveen, Sepehr Talebian, Mohammad Mehrali, Mehdi Mehrali, Elango Natarajan, Chee Ken Chan, Tunku Kamarul
Incorporation Of Human-Platelet-Derived Growth Factor-Bb Encapsulated Poly(Lactic-Co-Glycolic Acid) Microspheres Into 3d Coragraf Enhances Osteogenic Differentiation Of Mesenchymal Stromal Cells, Saktiswaren Mohan, Hanumantharao Raghavendran, Puvanan Karunanithi, Malliga Murali, Sangeetha Naveen, Sepehr Talebian, Mohammad Mehrali, Mehdi Mehrali, Elango Natarajan, Chee Ken Chan, Tunku Kamarul
Australian Institute for Innovative Materials - Papers
Tissue engineering aims to generate or facilitate regrowth or healing of damaged tissues by applying a combination of biomaterials, cells, and bioactive signaling molecules. In this regard, growth factors clearly play important roles in regulating cellular fate. However, uncontrolled release of growth factors has been demonstrated to produce severe side effects on the surrounding tissues. In this study, poly(lactic-co-glycolic acid) (PLGA) microspheres (MS) incorporated three-dimensional (3D) CORAGRAF scaffolds were engineered to achieve controlled release of platelet-derived growth factor-BB (PDGF-BB) for the differentiation of stem cells within the 3D polymer network. Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, scanning …
High-Performance Hybrid Carbon Nanotube Fibers For Wearable Energy Storage, Zan Lu, Yunfeng Chao, Yu Ge, Javad Foroughi, Yong Zhao, Caiyun Wang, Hairu Long, Gordon G. Wallace
High-Performance Hybrid Carbon Nanotube Fibers For Wearable Energy Storage, Zan Lu, Yunfeng Chao, Yu Ge, Javad Foroughi, Yong Zhao, Caiyun Wang, Hairu Long, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
Wearable energy storage devices are of practical interest, but few have been commercially exploited. Production of electrodes with extended cycle life, as well as high energy and power densities, coupled with flexibility, remains a challenge. Herein, we have demonstrated the development of a high-performance hybrid carbon nanotube (CNT) fiber-based supercapacitor for the first time using conventional wet-spinning processes. Manganese dioxide (MnO2) nanoflakes were deposited onto the as-prepared CNT fibers by electrodeposition to form highly flexible nanocomposites fibers. As-prepared fibers were characterized by electron microscopy, electrical, mechanical, and electrochemical measurements. It was found that the specific capacitance was over 152 F …
A Robust Free-Standing Mos2/Poly(3,4-Ethylenedioxythiophene):Poly(Styrenesulfonate) Film For Supercapacitor Applications, Yu Ge, Rouhollah Jalili, Caiyun Wang, Tian Zheng, Yunfeng Chao, Gordon G. Wallace
A Robust Free-Standing Mos2/Poly(3,4-Ethylenedioxythiophene):Poly(Styrenesulfonate) Film For Supercapacitor Applications, Yu Ge, Rouhollah Jalili, Caiyun Wang, Tian Zheng, Yunfeng Chao, Gordon G. Wallace
Australian Institute for Innovative Materials - Papers
Two-dimensional molybdenum disulfide (MoS2) is a promising energy storage material due to its high surface area and unique electronic structure. Free-standing flexible MoS2-based electrode is of importance for use in flexible energy storage devices, whereas there are limited reports available. In this work we developed a robust hybrid film, MoS2 incorporated with highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate). This free-standing film possesses excellent mechanical properties with a fracture strength of 18.0 MPa and a Young's modulus of 2.0 GPa. It can deliver a large volumetric capacitance of 141.4 F cm-3, a high volumetric energy density of 4.9 mWh cm-3, and a capacitance retention …
Phosphorus-Based Alloy Materials For Advanced Potassium-Ion Battery Anode, Wenchao Zhang, Jianfeng Mao, Sean Li, Zhixin Chen, Zaiping Guo
Phosphorus-Based Alloy Materials For Advanced Potassium-Ion Battery Anode, Wenchao Zhang, Jianfeng Mao, Sean Li, Zhixin Chen, Zaiping Guo
Australian Institute for Innovative Materials - Papers
Potassium-ion batteries (PIBs) are interesting as one of the alternative metal-ion battery systems to lithium-ion batteries (LIBs) due to the abundance and low cost of potassium. We have herein investigated Sn4P3/C composite as a novel anode material for PIBs. The electrode delivered a reversible capacity of 384.8 mA h g-1 at 50 mA g-1 and a good rate capability of 221.9 mA h g-1, even at 1 A g-1. Its electrochemical performance is better than any anode material reported so far for PIBs. It was also found that the Sn4P3/C electrode displays a discharge potential plateau of 0.1 V in …
Garnet-Type Fast Li-Ion Conductors With High Ionic Conductivities For All-Solid-State Batteries, Jiang-Fang Wu, Wei Kong Pang, Vanessa K. Peterson, Lu Wei, Xin Guo
Garnet-Type Fast Li-Ion Conductors With High Ionic Conductivities For All-Solid-State Batteries, Jiang-Fang Wu, Wei Kong Pang, Vanessa K. Peterson, Lu Wei, Xin Guo
Australian Institute for Innovative Materials - Papers
All-solid-state Li-ion batteries with metallic Li anodes and solid electrolytes could offer superior energy density and safety over conventional Li-ion batteries. However, compared with organic liquid electrolytes, the low conductivity of solid electrolytes and large electrolyte/electrode interfacial resistance impede their practical application. Garnet-type Li-ion conducting oxides are among the most promising electrolytes for all-solid-state Li-ion batteries. In this work, the large-radius Rb is doped at the La site of cubic Li6.10Ga0.30La3Zr2O12 to enhance the Li-ion conductivity for the first time. The Li6.20Ga0.30La2.95Rb0.05Zr2O12 electrolyte exhibits a Li-ion conductivity of 1.62 mS cm-1 at room temperature, which is the highest conductivity reported …
Doping-Induced Isotopic Mg11b2 Bulk Superconductor For Fusion Application, Qi Cai, Qianying Guo, Yongchang Liu, Zongqing Ma, Huijun Li, Wenbin Qiu, Dipakkumar Patel, Hyunseock Jie, Jung Ho Kim, Mehmet Somer, Ekrem Yanmaz, Arnaud Devred, Vladimir Luzin, Amanullah Fatehmulla, Wazirzada Farooq, Daniel Gajda, Yoshio Bando, Yusuke Yamauchi, Subrata Pradhan, Md Shahriar Hossain
Doping-Induced Isotopic Mg11b2 Bulk Superconductor For Fusion Application, Qi Cai, Qianying Guo, Yongchang Liu, Zongqing Ma, Huijun Li, Wenbin Qiu, Dipakkumar Patel, Hyunseock Jie, Jung Ho Kim, Mehmet Somer, Ekrem Yanmaz, Arnaud Devred, Vladimir Luzin, Amanullah Fatehmulla, Wazirzada Farooq, Daniel Gajda, Yoshio Bando, Yusuke Yamauchi, Subrata Pradhan, Md Shahriar Hossain
Australian Institute for Innovative Materials - Papers
Superconducting wires are widely used for fabricating magnetic coils in fusion reactors. Superconducting magnet system represents a key determinant of the thermal efficiency and the construction/operating costs of such a reactor. In consideration of the stability of 11B against fast neutron irradiation and its lower induced radioactivation properties, MgB2 superconductor with 11B serving as the boron source is an alternative candidate for use in fusion reactors with a severe high neutron flux environment. In the present work, the glycine-doped Mg11B2 bulk superconductor was synthesized from isotopic 11B powder to enhance the high field properties. The critical current density was enhanced …
Self-Assembled Particulate Psaa As Vaccine Against Streptococcus Pneumoniae Infection, Majela Gonzalez-Miro, Laura Rodriguez-Noda, Mildrey Farinas-Medina, Dagmar Garcia-Rivera, Vicente Verez-Bencomo, Bernd H. Rehm
Self-Assembled Particulate Psaa As Vaccine Against Streptococcus Pneumoniae Infection, Majela Gonzalez-Miro, Laura Rodriguez-Noda, Mildrey Farinas-Medina, Dagmar Garcia-Rivera, Vicente Verez-Bencomo, Bernd H. Rehm
Australian Institute for Innovative Materials - Papers
Streptococcus pneumoniae is a human pathogen responsible for the majority of childhood pneumonia and media otitis cases worldwide. The diversity of its capsular polysaccharides (CPS) results in more than 91 serotypes of which at least 23 are virulent. Various CPS conjugated to immunogenic carrier proteins are currently licensed and provide protection against the infection caused by the respective serotypes but not against new and emerging virulent serotypes. In this study, we considered the conserved protein antigen PsaA, the pneumococcal surface adhesin A, in order to overcome the limitations of CPS antigens. The PsaA was translationally fused to a polyhydroxybutyrate (PHB) …